Can not reproduced this issue on Precision 5510. All display modes (internal, external, extended, mirror) with HDMI work. Unplug HDMI does not cause crash/hang. But internal display is laggy sometimes on mirror mode and has error message in dmesg when plugin HDMI.
[ 489.340228] [drm:intel_cpu_fifo_underrun_irq_handler [i915_bpo]] *ERROR* CPU pipe A FIFO underrun [ 666.746115] [drm:intel_cpu_fifo_underrun_irq_handler [i915_bpo]] *ERROR* CPU pipe A FIFO underrun [ 709.818465] [drm:intel_cpu_fifo_underrun_irq_handler [i915_bpo]] *ERROR* CPU pipe A FIFO underrun -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1580272 Title: i915-bpo crashes on external hdmi input To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1580272/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
